<template>
  <div class="home">
     我是B  <input type="text"> 
     
  </div>
</template>

<script>
 
export default {
   created(){
       console.log("B created")
   },
   activated(){
       console.log("B activated")
   },
   deactivated(){
       console.log("B deactivated")
   }
  
  
}
</script>